How to Create Your Own Cryptocurrency in 15 Minutes (Part 2)

Introduction
Many learners have successfully created their testnet tokens by following our previous guide—applause for innovative coins like "XJC" or "LHC"! However, demands for launching real cryptocurrencies surged. This simplified guide covers essential changes for deploying on the Ethereum Mainnet.

Step-by-Step Guide to Launching a Real Cryptocurrency

1. Setting Up the Development Environment

Remix IDE: Access Remix Ethereum IDE for smart contract development.
MetaMask: Install the Chrome extension and configure it for the Ethereum Mainnet (not Rinkeby testnet).

👉 Beginner’s Guide to MetaMask Setup

2. Customizing the Smart Contract

Source Code: Use the ConsenSys EIP-20 Token Standard.
Key Adjustments:
1. Rename the contract (e.g., TheElizaToken).
2. Modify the constructor function to match your token’s parameters (supply, symbol, decimals).

Example:

function TheElizaToken(uint256 initialSupply, string memory tokenName, uint8 decimalUnits, string memory tokenSymbol) public {  
    totalSupply = initialSupply * 10 ** uint256(decimalUnits);  
    balances[msg.sender] = totalSupply;  
    name = tokenName;  
    decimals = decimalUnits;  
    symbol = tokenSymbol;  
}

3. Deploying the Token

Steps:
1. Compile the contract in Remix.
2. Deploy via MetaMask (approx. 0.010008 ETH, ~$52 at current rates).
3. Verify the token supply on Etherscan.

Pro Tip: Enclose addresses in quotes to avoid balance errors.

4. Transferring Tokens

Use the transfer function in Remix:
```
transfer("0xRecipientAddress", 20000);
```
Confirm transactions via MetaMask.

5. Verifying on Etherscan

Search your token symbol on Etherscan to view:
- Contract details.
- Transaction history.

FAQs

Q1: How much does it cost to launch a token?

A: ~0.010008 ETH (varies with gas fees).

Q2: Can my token be listed on exchanges immediately?

A: No—technical deployment ≠ exchange listing. Focus on project viability.

Q3: What’s the difference between testnet and mainnet?

A: Testnets use fake ETH; mainnet requires real ETH and costs money.

👉 Deep Dive: Token Economics

Key Takeaways

Technical Simplicity: Launching a token takes minutes.
Commercial Reality: Success depends on use cases and team credibility.
Cost: Budget ~$50–$100 for deployment.

Always conduct due diligence before investing!

For troubleshooting, leave a comment below.


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